Virtual Lab: Enzyme Controlled Reactions Name: NC Essential Standard Bio.4.1.3 Explain how enzymes act as catalysts for biological reactions Objective: I can explain how enzymes catalyze chemical reactions. I can recognize the ideal conditions (temperature‚ pH‚ enzyme and substrate concentrations) for enzyme activity by observing and analyzing graphs Instructions: Open the Virtual Lab: Enzyme Controlled Reactions here The virtual lab simulation will be on the right side
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Amylase Lab Report Pre-lab Quiz Results You scored 0% by answering 0 out of 6 questions correctly. 1. The substrate for amylase is Correct answer: e. starch and carbohydrate. You have not answered this question. 2. Which of the following is true of enzymes? Correct answer: c. Their activity can be affected by temperature and pH. You have not answered this question. 3. The reagent IKI tests for the presence of Correct answer: a. starch. You have not answered this question. 4. Which of the following is
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2BMT I. ABSTRACT pH greatly affects the activity of enzymes. There is a point or pH level where maximum activity of enzyme can be achieved‚ this is called optimum pH. Invertase was extracted from yeast and used as the detanured enzymes. Two sets of six test tubes were each added with different pH level of buffered solution: 1- 0.1‚ 2-0.3‚ 3-0.5‚ 4-1.7‚ 5-1.9‚ 6-1.11. On the first set‚ enzyme stock was added while on the second set denatured enzyme was added instead. Though this experiment was not
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metabolism to take place. The digestive system breaks down complicated food particles into molecules (Catabolism) like this: Fat breaks down into Fatty acids by using an enzyme called Lipase. Protein breaks down into Amino Acids by an enzyme called protease. Starch breaks down into sugars by using an enzyme called amylase. These enzymes are produced by hormones. The hormones are activated when you eat. Once we have broken these down‚ we can then build them back up again into a collection of molecules
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determine the effect of various factors on the rate of reaction between an enzyme andits substrate‚ and also to determine the optimal ranges under which the enzyme activity ismaximized. Also to determine whether saline and alcohol are inhibitors or activators Hypothesis: PH factor prediction: I predict that as the pH increases so the activity of the enzyme willincrease until it reaches optimum pH range (pH 7) because the enzyme is less denaturedwhen it reaches the preferred pH level‚ and after this
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Proteins are polymer chains made of amino acids linked together by peptide bonds. In nutrition‚ proteins are broken down in the stomach during digestion by enzymes known as proteases into smaller polypeptides to provide amino acids for the body‚ including the necessary amino acids that cannot be biosynthesized by the body itself. Biosynthesis is an enzyme-catalyzed process in cells of living organisms by which substrates are converted to more complex products. Collagen is a group of naturally occurring
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CHAPTER 8 AN INTRODUCTION TO METABOLISM Metabolism‚ Energy‚ and Life 1. Explain the role of catabolic and anabolic pathways in cellular metabolism. Catabolic means the molecule is broken down into smaller parts. Anabolic means molecules are used to build bigger compounds. 2. Distinguish between kinetic and potential energy. Kinetic energy is the energy of object in motion. Potential energy is the energy a object has due to its position or traits. 3. Distinguish between
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Alpha Amylase with Starch at Specific pH ’s and Temperatures Page 1 Abstract Enzyme ’s are used as catalysts in certain reactions. They help lower the activation energy needed for the reaction to go to completion. At optimum temperature and pH the amount of collisions of substrate and enzyme is at its highest‚ any deviation from the optimum temperature and pH will result in the denaturization of the enzyme. The purpose of this experiment is to find the optimum temperature and pH for the reaction
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point for the enzyme (catalase) to substrate (H2O2(aq)) concentration ratio. Thus‚ to truly understand this‚ the trial time period should be extended insofar that a declination in the rate of the reaction can be observed with multiple trials. If the trends of the independent trials coincide with one another‚ then it is plausible that a saturation point may have been a factor of the linear-like trend. This case will be further discussed in one of the five major factors that influence enzyme activity:
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peroxide affects the rate of reaction of the enzyme catalase. Background Information: Enzymes such as catalase are globular protein molecules with catalytic properties. A catalyst is a substrate which can alter the rate of reaction without itself undergoing any permanent change. As they are not changed my reactions which they catalyse‚ enzymes can be used over and over again. They are therefore quite effective in small amounts. All enzymes are specific as each one performs a particular
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